Photo-induced DC drift in Mach-Zehnder modulators using lead lanthanum zirconate titanate thin films

We experimentally investigated the photo-induced direct current (DC) drift of a lead lanthanum zirconate titanate (PLZT) Mach-Zehnder modulator with large optical input power. We clarify the mechanism by which short-term and long-term DC drifts arise and discuss each case of DC drift. We reveal that...

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Main Authors: Hideo Hara, Tomoki Joichi, Shunsuke Abe, Shin Masuda
Format: Article
Language:English
Published: AIP Publishing LLC 2022-12-01
Series:AIP Advances
Online Access:http://dx.doi.org/10.1063/5.0129414
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author Hideo Hara
Tomoki Joichi
Shunsuke Abe
Shin Masuda
author_facet Hideo Hara
Tomoki Joichi
Shunsuke Abe
Shin Masuda
author_sort Hideo Hara
collection DOAJ
description We experimentally investigated the photo-induced direct current (DC) drift of a lead lanthanum zirconate titanate (PLZT) Mach-Zehnder modulator with large optical input power. We clarify the mechanism by which short-term and long-term DC drifts arise and discuss each case of DC drift. We reveal that short-term DC drift can be reduced by adjusting the buffer-layer resistivity of the PLZT modulator. We also found that the impurity level of the buffer layer affects long-term DC drift.
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spelling doaj.art-d04c3a1453ed49f5b394c93d8dc18cf02023-01-19T16:47:09ZengAIP Publishing LLCAIP Advances2158-32262022-12-011212125115125115-510.1063/5.0129414Photo-induced DC drift in Mach-Zehnder modulators using lead lanthanum zirconate titanate thin filmsHideo Hara0Tomoki Joichi1Shunsuke Abe2Shin Masuda3Advantest Laboratories Ltd., 48-1 Matusbara, Kamiayashi, Aobaku, Sendai, Miyagi 989-3124, JapanAdvantest Laboratories Ltd., 48-1 Matusbara, Kamiayashi, Aobaku, Sendai, Miyagi 989-3124, JapanAdvantest Laboratories Ltd., 48-1 Matusbara, Kamiayashi, Aobaku, Sendai, Miyagi 989-3124, JapanAdvantest Laboratories Ltd., 48-1 Matusbara, Kamiayashi, Aobaku, Sendai, Miyagi 989-3124, JapanWe experimentally investigated the photo-induced direct current (DC) drift of a lead lanthanum zirconate titanate (PLZT) Mach-Zehnder modulator with large optical input power. We clarify the mechanism by which short-term and long-term DC drifts arise and discuss each case of DC drift. We reveal that short-term DC drift can be reduced by adjusting the buffer-layer resistivity of the PLZT modulator. We also found that the impurity level of the buffer layer affects long-term DC drift.http://dx.doi.org/10.1063/5.0129414
spellingShingle Hideo Hara
Tomoki Joichi
Shunsuke Abe
Shin Masuda
Photo-induced DC drift in Mach-Zehnder modulators using lead lanthanum zirconate titanate thin films
AIP Advances
title Photo-induced DC drift in Mach-Zehnder modulators using lead lanthanum zirconate titanate thin films
title_full Photo-induced DC drift in Mach-Zehnder modulators using lead lanthanum zirconate titanate thin films
title_fullStr Photo-induced DC drift in Mach-Zehnder modulators using lead lanthanum zirconate titanate thin films
title_full_unstemmed Photo-induced DC drift in Mach-Zehnder modulators using lead lanthanum zirconate titanate thin films
title_short Photo-induced DC drift in Mach-Zehnder modulators using lead lanthanum zirconate titanate thin films
title_sort photo induced dc drift in mach zehnder modulators using lead lanthanum zirconate titanate thin films
url http://dx.doi.org/10.1063/5.0129414
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AT shunsukeabe photoinduceddcdriftinmachzehndermodulatorsusingleadlanthanumzirconatetitanatethinfilms
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